1941 OLDSMOBILE



Model Designations:

Oldsmobile, Special 6, Series 66 (F), 6 Cylinder

Oldsmobile, Special 8, Series 68 (E), 8 Cylinder

Oldsmobile, Dynamic 6, Series 76 (G), 6 Cylinder

Oldsmobile, Dynamic 8, Series 78 (J), 8 Cylinder

Oldsmobile, Custom Cruiser 6, Series 96 (H), 6 Cylinder

Oldsmobile, Custom Cruiser 8, Series 98 (L), 8 Cylinder



Oldsmobile, Special, Series 66 (F), 6 Cylinder, Body Styles



2 Door Convertible, 3 Passenger, Body #413567

Base Price: $1,048; Shipping Weight: 3,155 Pounds; Production Total: 2,833


2 Door Business Coupe, 3 Passenger, Body # 413527B

Base Price: $852; Shipping Weight: 3,145 Pounds; Production Total: 6,433


2 Door Club Coupe, 3 Passenger, Body # 413527

Base Price: $893; Shipping Weight: 3,185 Pounds; Production Total: 23,796


2 Door Sedan, 5 Passenger, Body # 413511

Base Price: $898; Shipping Weight: 3,190 Pounds; Production Total: 32,475


4 Door Sedan, 5 Passenger, Body #413519

Base Price: $945; Shipping Weight: 3,230; Production Total: 37,820


4 Door Station Wagon, 6 Passenger, Body #4135SW

Base Price: $1,175; Shipping Weight: NA: Production Total: NA



Oldsmobile, Special, Series 68 (E), 8 Cylinder, Body Styles



2 Door Convertible, 3 Passenger, Body #413567

Base Price: $1,089; Shipping Weight: 3,445 Pounds; Production Total: 776


2 Door Business Coupe, 3 Passenger, Body # 413527B

Base Price: $883; Shipping Weight: 3,260 Pounds; Production Total: 188


2 Door Club Coupe, 3 Passenger, Body # 413527

Base Price: $935; Shipping Weight: 3,330 Pounds; Production Total: 2,684


2 Door Sedan, 5 Passenger, Body # 413511

Base Price: $940; Shipping Weight: 3,335 Pounds; Production Total: 3,878


4 Door Sedan, 5 Passenger, Body #413519

Base Price: $987; Shipping Weight: 3,390; Production Total: 6,009


4 Door Station Wagon, 6 Passenger, Body #4135SW

Base Price: $1,217; Shipping Weight: NA: Production Total: NA




Oldsmobile, Dynamic, Series 76 (G), 6 Cylinder, Body Styles


2 Door Coupe, 3 Passenger, Body # 413627B

Base Price: $908; Shipping Weight: 3,315 Pounds; Production Total: 352


2 Door Club Sedan, 5 Passenger, Body # 413627

Base Price: $954; Shipping Weight: 3,320 Pounds;

Production Total: 41,938 (Standard); 6,947 (DeLuxe)


4 Door Sedan, 5 Passenger, Body #413609

Base Price: $1,010; Shipping Weight: 3,390;

Production Total: 31,074 (Sandard); 9,645 (DeLuxe)



Oldsmobile, Dynamic, Series 78 (J), 8 Cylinder, Body Styles


2 Door Coupe, 3 Passenger, Body # 413627B

Base Price: $1,029; Shipping Weight: 3,403 Pounds; Production Total: 51


2 Door Club Sedan, 5 Passenger, Body # 413627

Base Price: $1,074; Shipping Weight: 3,420 Pounds;

Production Total: 8,260 (Standard); 5,338 (DeLuxe)


4 Door Sedan, 5 Passenger, Body #413609

Base Price: $1,130; Shipping Weight: 3,500;

Production Total: 8,046 (Sandard); 7,534 (DeLuxe)




Oldsmobile, Custom Cruiser, Series 96 (H), 6 Cylinder, Body Styles


2 Door Convertble, 3 Passenger, Body # 413967

Base Price: $1,191; Shipping Weight: 3,525 Pounds; Production Total: 325


2 Door Coupe, 3 Passenger, Body # 413927

Base Price: $1,043; Shipping Weight: 3,320 Pounds; Production Total: 2,176


4 Door Sedan, 5 Passenger, Body #413919

Base Price: $1,099; Shipping Weight: 3,410; Production Total: 4,176



Oldsmobile, Custom Cruiser, Series 98 (L), 8 Cylinder, Body Styles


2 Door Convertble, 3 Passenger, Body # 413967

Base Price: $1,227; Shipping Weight: 3,600 Pounds; Production Total: 1,263


4 Door Phaeton, 6 Passenger, Body #413967

Base Price: $1,575; Shipping Weight: 3,790 Pounds: Production Total: 119


2 Door Coupe, 3 Passenger, Body # 413927

Base Price: $1,059; Shipping Weight: 3,430 Pounds; Production Total: 1,263


4 Door Sedan, 5 Passenger, Body #413919

Base Price: $1,135; Shipping Weight: 3,500; Production Total: 22,081




General Specifications


Oldsmobile, Special 66 (F), 6 Cylinder

Wheelbase: 119

Engine: Inline 6 Cylinder, L-Head

Bore & Stroke: 3-1/2" X 4-1/8"

Engine Displacement: 238.1 Cu. In.

Compresssion Ratio: 6.10 to 1

Taxable Horsepower: 29.40

Horsepower: 100 @ 3,400 RPM

Torque: Not Available

Rear Axle Ratio: : 4.10:1

Carburetor: Single Downdraft with Automatic Choke .

Tire Size: 6.00 x 16 inches; Inflation Pressure, Front 28, Rear 28


Oldsmobile, Dynamic 76 (G), 6 Cylinder

Wheelbase: 125

Engine: Inline 6 Cylinder, L-Head

Bore & Stroke: 3-1/2" X 4-1/8"

Engine Displacement: 238.1 Cu. In.

Compresssion Ratio: 6.10 to 1

Taxable Horsepower: 29.40

Horsepower: 100 @ 3,400 RPM

Torque: Not Available

Rear Axle Ratio: : 4.30:1

Carburetor: Single Downdraft with Automatic Choke .

Tire Size: 6.50 x 16 inches; Inflation Pressure, Front 28, Rear 28




Oldsmobile, Custom Cruiser, Series 96 (H), 6 Cylinder

Wheelbase: 125

Engine: Inline 6 Cylinder, L-Head

Bore & Stroke: 3-1/2" X 4-1/8"

Engine Displacement: 238.1 Cu. In.

Compresssion Ratio: 6.10 to 1

Taxable Horsepower: 29.40

Horsepower: 100 @ 3,400 RPM

Torque: Not Available

Rear Axle Ratio: : 4.30:1

Carburetor: Single Downdraft with Automatic Choke .

Tire Size: 7.00 x 15 inches; Inflation Pressure, Front 24, Rear 24



Capacities, 6 Cylinder Models


Cooling System: 17-3/4 Quarts

Fuel Tank: 19 Gallons;

Engine Oil Refill: 5 Quarts;

Grade of Oil: Above +32F 20;

Above +10F 20W;

Above -10F 10W

Manual Transmission: 2 Pints

Grade of Oil: Summer 90, Winter 90

Hydra-Matic Transmission: 9 Quarts on Refill; 10 Quarts on Overhaul

Rear Axle: 2-1/2 Pints

Grade of Oil: Summer 90H, Winter 90H



Tune Up Specifications, 6 Cylinder Models


Spark Plug Type: Champion J-8, J-11, or Equivalent

Spark Plug: Gap .040"

Point Gap: .020"

Distributor Cam Angle: 35 degrees

Ignition Timing: "TDC" Mark on Flywheel

Firing Order: 153624

Tappet Clearance, Hot: Intake .008", Exhaust .011"

Cylinder Head Torque: 60-70 Ft Lbs


Engine Bearing Data, 6 Cylinder Models


Camshaft End Play: Controlled by Spring & Plunger on the front.

Camshaft Bearing Clearance: .0015"-.0035"

Rod Journal Diameter: 2.123"-2.124"

Rod Bearing Clearance: .0005"-.0025"

Rod End Play: .005"-.010" inches

Rod Bolt Tension: 50-55 Lbs. Ft.

Main Bearing Journal Diameter:

#1: 2.478"-2.479"; #2: 2.5405"-2.5415";

#3: 2.6655"-2.6665"; #4: 2.6855"-2.6865;

Main Bearing Clearance: .0005" -.0025" for Front Main; .001"-.003" for Others

Crankshaft End Play: .004"-.008"

Main Bolt Tension: #1, 2, & 3: 100 Ft Lbs; #4, 140 Ft Lbs



Valve Specifications, 6 Cylinder Models


Tappet Clearance, Running Hot: Intake .008"; Exhaust .011"

Clearance for Timing: Intake: .0125"; Exhaust: .0155"

Valve Timing: Intake Opens 5 Degrees Before Top Dead Center

Exhaust Closes 5 degrees After Top Dead Center

Valve Seat Angle: Intake 30 degrees; Exhaust 45 degrees,

Valve Spring Pressure: 55 Lbs @ 2-1/4 inches (New Springs)

Valve Stem Clearance: Intake .002" -.004"

Exhaust .0025"-.004"




Piston & Ring Data, 6 Cylinder Models


Piston Removal: From Above

Piston Clearance (Minimum):

Top Land Inch .023"

Top of Skirt, Inch: .0013"

Fitting Pistons with Spring Scale:

Shim Thickness: .002"

Pounds Pull on Scale: 4 to 11

Width of Ring End Gap (Minimum):

Compression Ring: .008"

Oil Ring: .007"

Clearance Between Ring & Grooves:

Compression Ring: .001"-.003"

Oil Control Ring: .001"-.0025"





General Specifications


Oldsmobile, Special 68 (E), 8 Cylinder

Wheelbase: 119 Inches

Engine Type: Inline 8 Cylinder, L-Head

Bore & Stroke: 3-1/4" X 3-7/8"

Engine Displacement: 257.1 Cu. In.

Compresssion Ratio: 6.30 to 1

Taxable Horsepower: 33.80

Horsepower: 110 @ 3,600 RPM

Torque: Not Available

Rear Axle Ratio: 4.1:1;

Carburetor: Dual Downdraft with Automatic Choke

Tire Size: 6.00 x 16 inches; Inflation Pressure, Front 28, Rear, 28




Oldsmobile, Dynamic 78 (J), 8 Cylinder

Wheelbase: 125 Inches

Engine Type: Inline 8 Cylinder, L-Head

Bore & Stroke: 3-1/4" X 3-7/8"

Engine Displacement: 257.1 Cu. In.

Compresssion Ratio: 6.30 to 1

Taxable Horsepower: 33.80

Horsepower: 110 @ 3,600 RPM

Torque: Not Available

Rear Axle Ratio: 4.3:1;

Carburetor: Dual Downdraft with Automatic Choke

Tire Size: 6.50 x 16 inches; Inflation Pressure, Front 28, Rear, 28



Oldsmobile, Custom Cruiser 98 (L), 8 Cylinder

Wheelbase: 125 Inches

Engine Type: Inline 8 Cylinder, L-Head

Bore & Stroke: 3-1/4" X 3-7/8"

Engine Displacement: 257.1 Cu. In.

Compresssion Ratio: 6.30 to 1

Taxable Horsepower: 33.80

Horsepower: 110 @ 3,600 RPM

Torque: Not Available

Rear Axle Ratio: 4.3:1;

Carburetor: Dual Downdraft with Automatic Choke

Tire Size: 7.00 x 15 inches; Inflation Pressure, Front 24, Rear, 24



Capacities, 8 Cylinder Models


Cooling System: 21-1/2 Quarts

Fuel Tank: 19 Gallons;

Engine Oil Refill: 6 Quarts;

Grade of Oil: Above +32F 20;

Above +10F 20W;

Above -10F 10W

Manual Transmission: 2 Pints

Grade of Oil: Summer 90, Winter 90

Hydra-Matic Transmission: 9 Quarts on Refill; 10 Quarts on Overhaul

Rear Axle: 2-1/2 Pints

Grade of Oil: Summer 90H, Winter 90H




Tune Up Specifications, 8 Cylinder Models


Spark Plug Type: Champion J-8, J-11, or Equivalent

Spark Plug: Gap .030"

Point Gap: .015"

Distributor Cam Angle: 31 degrees

Ignition Timing: Steel Ball in Flywheel

Firing Order: 16258374

Tappet Clearance, Hot: Intake .008", Exhaust .011"

Cylinder Head Torque: 60-70 Ft Lbs



Engine Bearing Data, 8 Cylinder Models


Camshaft End Play: Controlled by Spring & Plunger at the front

Camshaft Bearing Clearance: .0015"-.0035"

Rod Journal Diameter: 2.123"-2.124"

Rod Bearing Clearance: .0005"-.0025"

Rod End Play: .005"-.010" inches

Rod Bolt Tension: 50-55 Lbs. Ft.

Main Bearing Journal Diameter:

#1: 2.478"-2.489"; #2: 2.5405"-2.5415";

#3: 2.603"-2.604"; #4: 2.6655"-2.6665";

#5: 2.6855:-2.6865"

Main Bearing Clearance: .0005" -.0025"; Others .001"-.003"

Crankshaft End Play: .004"-.008"

Main Bolt Tension:

#1, 2, 3, & 4: 100 Ft Lbs; #5: 140 Ft Lbs




Valve Specifications, 8 Cylinder Models


Tappet Clearance, Running Hot: Intake .008"; Exhaust .011"

Clearance for Timing: Intake: .0125"; Exhaust: .0155"

Valve Timing: Intake Opens At Top Dead Center

Exhaust Closes 10 degrees After Top Dead Center

Valve Seat Angle: Intake 30 degrees; Exhaust 45 degrees,

Valve Spring Pressure: 55 Lbs @ 2-1/4 inches (New Springs)

Valve Stem Clearance: Intake .002"-.004"

Exhaust .0025"-.004"




Piston & Ring Data, 8 Cylinder Models


Piston Removal: From Above

Piston Clearance (Minimum):

Top Land Inch .023"

Top of Skirt, Inch: .0013"

Fitting Pistons with Spring Scale:

Shim Thickness: .002"

Pounds Pull on Scale: 4 to 11

Width of Ring End Gap (Minimum):

Compression Ring: .009"

Oil Ring: .009"

Clearance Between Ring & Grooves:

Compression Ring: .001"-.0025"

Oil Control Ring: .001"-.0025"




Beginning Engine Numbers:

6 Cylinder Models: G-225001

8 Cylinder Models:: L-379001



Beginning Serial Numbers:

6 Cylinder, Series F: 66C-1001 California

66L-1001 Linden, New Jersey

66-1001 Lansing, Michigan

6 Cylinder, Series G: 76C-1001 California

76L-1001 Linden New Jersey

76-1001 Lansing, Michigan

6 Cylinder, Series H: 96C-1001 California

96L-1001 Linden, New Jersey

96-1001 Lansing, Michigan

8 Cylinder, Series E 68C-1001 California

68L-1001 Linden, New Jersey

68-1001 Lansing, Michigan

8 Cylinder, Series J 78C-1001 California

78L-1001 Linden, New Jersey

78-1001 Lansing, Michigan

8 Cylinder, Series L 98C-1001 California

98L-1001 Linden, New Jersey

98-1001 Lansing, Michigan



Brake Specifications, 119" Wheelbase Models


Lining Material: Molded

Lining Dimensions/Wheel in Inches: 21-5/16"

Width: 1-3/4",

Thickness: 3/16"

Pedal Free Play: 3/16" *

* Adjust Pedal so Rubber Pad Under the Toe Board is Compressed to the Dimension Indicated.



Brake Specifications, 125" Wheelbase Models


Lining Material: Molded

Lining Dimensions/Wheel in Inches: 21-5/16"

Width: 2",

Thickness: 3/16"

Pedal Free Play: 3/16" *

* Adjust Pedal so Rubber Pad Under the Toe Board is Compressed to the Dimension Indicated.






Wheel Alignment Specifications, 6 & 8 Cylinder Models


Caster: - 3/8 Degrees

Camber: +1/4 Degrees

Toe In: 3/32"

Kingpin Angle: 4-5/6 Degrees




Rear Axle , 6 & 8 Cylinder Models


Ring Gear & Pinion Backlash: .004"-.008"

Drive Pinion Adjustment: Shims

Drive Pinion Bearing Adjustment: None

Axle Shaft End Play: .000"-.008"



Delco-Remy Distributor Specifications - 6 Cylinder Models

Distributor #647-F

Cam Angle: 35 Degrees

Breaker Point Opening: .020"

Condenser Capacity: .20-.25 Mfds.

Breaker Arm Spring Tension: 17-21 Ounces

Centrifugal Advance Data:

Advance Starts: 1-1/2 Degrees @ 250 RPM

Full Advance: 14 Degrees @ 1,850 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 5"-7"

Inches of Vacuum for Full Plunger Travel: 15"-18"

Maximum Vacuum Advance: 10 Degrees


Delco-Remy Distributor Specifications - 8 Cylinder Models

Distributor #1110802

Cam Angle: 25 Degrees

Breaker Point Opening: .015"

Condenser Capacity: .20 -.25 Mfds.

Breaker Arm Spring Tension: 19-23 Ounces

Centrifugal Advance Data:

Advance Starts: 1-1/4 Degrees @ 300 RPM

Full Advance: 15 Degrees @ 2,000 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 5"-7"

Inches of Vacuum for Full Plunger Travel: 14"-17"

Maximum Vacuum Advance: 7-1/2 Degrees



Delco-Remy Generator Specifications


Generator #1102664

Brush Spring Tension: 25 Ounces

Direction of Rotation: Clockwise

Field Current @ 6 Volts: 1.75-1.9 Amperes

Maximum Cold Output:

30 Amperes, 8.0 Volts @ 1,7500 RPM

Maximum Hot Output: Controled by Current Regulator


Generator #1102680

Brush Spring Tension: 25 Ounces

Direction of Rotation: Clockwise

Field Current @ 6 Volts: 1.75-1.9 Amperes

Maximum Cold Output:

30 Amperes, 8.0 Volts @ 1,7500 RPM

Maximum Hot Output: Controled by Current Regulator



Delco-Remy Regulator Specifications


Regulator Type: Voltage & Current

Part #1118201

Ground Polarity: Negative

Voltage to Close Relay Points: 6.2-6.7 Volts

Amperage to Open Relay Points: 0-4.0 Amperes

Maximum Operating Amperage: 34-36 Amperes

Maximum Operating Voltage: 7.2-7.4 Volts



Delco-Remy Starting Motor Specifications - 6 Cylinder Models


Part #1107034

Brush Spring Tension: 24-28 Ounces

No Load Test: 65 Amperes, 5.0 Volts, @ 5,000 RPM

Lock Test: 525 Amperes, 3.37 Volts, 12 Ft. Lbs. of Torque.



Delco-Remy Starting Motor Specifications - 8 Cylinder Models


Part #11007922

Brush Spring Tension: 24-28 Ounces

No Load Test: 60 Amperes, 5.0 Volts, @ 6,000 RPM

Lock Test: 600 Amperes, 3.0 Volts, 15 Ft. Lbs. of Torque.



Carter Carburetor Specifications, 6 Cylinder


Carburetor Model: WA1

Part #481S

Casting # 340

Repair Kit # 1097A

Float Level: 1/2"

Idle Screw Setting: 1/2 to 1-1/2 Turns

Metering Rod Gauge: T-109-102

Pump Travel: 16/64" (Medium Stroke)

Anti-Percolator Setting: With throttle valve open .020", there should be .005" to .015" clearance between rocker arm & pump arm

Unloader Setting: 3/8"

Fast Idle Setting: 5/8"

Choke Lockout Adjustment: 1/32"



Carter Carburetor Specifications, 6 Cylinder


Carburetor Model: WA1

Part #504S

Casting # 340

Repair Kit # 1097A

Float Level: 1/2"

Idle Screw Setting: 1/2 to 1-1/2 Turns

Metering Rod Gauge: T-109-102

Pump Travel: 16/64" (Medium Stroke)

Anti-Percolator Setting: With throttle valve open .020", there should be .005" to .015" clearance between rocker arm & pump arm

Unloader Setting: 7/16"

Fast Idle Setting: 5/8"

Choke Lockout Adjustment: 1/32"




Carter Carburetor Specifications, 8 Cylinder


Carburetor Model: WD0

Part #480S-SA

Casting # 342

Repair Kit # 1096A

Float Level: 3/16"

Idle Screw Setting: 1/2 to 1-1/2 Turns

Metering Rod Gauge: T-109-113

Pump Travel: 19/64"

Anti-Percolator Setting: With throttle valve closed, indicator lines should be flush with top of anti-percolator plugs.

Unloader Setting: 3/16"

Fast Idle Setting: .015"

Choke Lockout Adjustment: None



Carter Carburetor Specifications, 8 Cylinder


Carburetor Model: WD0

Part #503S-SA

Casting # 342

Repair Kit # 1096A

Float Level: 3/8"

Idle Screw Setting: 1/2 to 1-1/2 Turns

Metering Rod Gauge: T-109-113

Pump Travel: 19/64"

Anti-Percolator Setting: With throttle valve closed, indicator lines should be flush with top of anti-percolator plugs.

Unloader Setting: 1/4"

Fast Idle Setting: .015"

Choke Lockout Adjustment: None



Fuel Pump Data:

Pump Model: AH

Maximum Pressure: 3-3/4 PSI


Pump Model: AJ

Maximum Pressure: 4 PSI



Dash Gauge Manufacturer:

Gasoline: AC

Temperature: AC

Oil Pressure: AC

Ammeter: AC





Colors & Codes


20 Black

21-A Sea Plane Bronze Poly Upper & Casino Brown Poly Lower

22 Ambassador Red Poly

23 Miami Sand

24 Capri Blue Poly

24-A Teal Blue Poly Upper & Capri Blue Poly Lower

25 Oslo Blue Poly

25-A Pacific Blue Poly Upper & Oslo Blue Poly Lower

26 Bengal Brown Poly

27 Dusty Gray

27-A River Mist Gray Upper & Dusty Gray Lower

28 Falcon Gray Poly

28-A Eddystone Gray Poly Upper & Falcon Gray Poly Lower

29 Renfrew Green Poly

29-A Aspen Green Poly Upper & Renfrew Green Poly Lower

32 Garnet Red Poly




Popular Options


Fender Skirts, Bumper Guards, DeLuxe Radio, Standard Radio,Contitioned Air Heater, DeLuxe Heater, Underseat Heater, Wind up Clock, Electric Clock, Cigar Lighter, Glove Compartment Light, DeLuxe Steering Wheel, Vanity Visor Mirror, Rear Seat Foot Rests, Wheel Trim Rings, Turn Signals, Fog Lamps, Backup Lamps, License Plate Frames, Exhaust Deflector, Seat Covers, Hydra-Matic Automatic Transmission.



1941 Oldsmobile Historical Data


1941 Oldsmobiles were introduced on September 23, 1940.

Total 1941 Oldsmobile Production was 270,040.


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